Hello. I hope someone can give me some advice. I am a relatively new knitter,and I'm working on a cardigan for my eight-year-old daughter. I am getting near finishing the back, but I measured (a little too late, obviously), and it seems to be several sizes too wide. I DID check my guage before starting this project, so I don't know why it's so big. :?? My question now is: As I'm approaching the armhole shaping, should I add a few more rows to the back first, so that it is a little longer (since it is so wide), and if so, how should I go about doing the armhole shaping and the rest of the sweater? I don't mind it being big (better than too small), but I at least want it to be proportional. Please help!!